My DD, a RN, just had a baby, nine months old now. She uses bumper pads and covers for the baby because she has the monitor in the bed that sounds an alarm if no breathing was detected after 30 seconds. She has two of the monitor pads in the crib to cover the surface in case the baby scooches into a corner. If you don't use the monitor then nothing is suppose to be in the crib for baby to bury his face into. Not even a stuffed toy. Some parents don't use the breathing monitor so there is a danger of the baby suffocating so the Drs say nothing in the crib and baby sleeps face up. I can't imagine not using a breathing monitor for an infant. I wish they were available when my kids were babies. I would have slept more and worried less.
I checked the one I have in the crib at my house (I keep him during the day) : It's SafetoSleep Mobile Sleep and Baby Breathing Movement Monitor. Amazon has them:
http://www.amazon.com/Safe-To-Sleep-.../dp/B00BDCNSXA [h=1][/h][h=1][/h]